张恒
摘要:大型混流式水轮机在轮叶片结构的动力特性十分特殊。尤其是在水轮机叶片的动力结构体系上,需要根据混流式水轮机的整体情况对其受力结构以及动力情况进行较为明确的分析。同时,还要根据其叶片的动力变化情况,根据其旋转特点以及动力变化体系的特点。在多流向以及混流式的变化情况下,其叶片的结构动力也会根据水轮机的变化而发生相应的改变。本文主要针对大型混流式水轮机转轮叶片结构的动力特性进行分析,并根据其力的变化性,对叶片结构的多维变化进行分析。
Abstract: The dynamic characteristics of runner blade structure of large Francis turbine are very special. Especially in the dynamic structure system of the turbine blade, it is necessary to make a clear analysis of the force structure and the dynamic situation according to the overall situation of the Francis turbine. At the same time, it should analyze according to the dynamic changes of its blades and the characteristics of its rotation and the dynamic change system. In the case of multi-flow direction and mixed flow changes, the structural power of its blades will also change correspondingly according to the changes of the hydraulic turbine. This paper mainly analyzes the dynamic characteristics of the runner blade structure of large Francis turbine, and the multi-dimensional change of the blade structure according to the variability of its force.
关键词:大型混流;水轮机;叶片结构;动力特性分析
Key words: large mixed flow;turbine;blade structure;dynamic characteristics analysis
中图分类号:TK733+.1 文献标识码:A 文章编号:1006-4311(2020)17-0147-03
0 引言
为了能够顺应新能源体系的发展,水力发电已经逐渐地成为一种必然的趋势和未来必备的一种新型能源。在进行大型混流式水轮机的叶片结构动力的全面分析过程中,需要根据其动力的特性以及受力的特点,对其水力发电的效率。水力发电的特征进行显著性的动力结构体系的分析。而且在机械自动化技术全面发展的今天,机电一体化已经成为一种趋势。尤其是在自动化生产过程中,其机械自动化技术已经逐渐地趋于成熟,而且自动化技术也在逐渐地发生改变。以机械动力发展为主体,对水轮机进行叶片发电动力的基础改造已经逐渐地成为一种发展的途径和未来发展趋势的一种必然。因此,提高混流式水轮机的转化效率以及提升相应的动力结构运转效率十分关键。……